"«We have to order a retreat.»""My master will never allowed the Republic to get away with this treachery.""«I'm sending my warriors to hide in the catacombs. The Jedi must not find our designs for the Ultimate Weapon. If they find out what we are planning to build, we're doomed.»""I will take the designs with me to Coruscant. They will be much safer there with my master."

Poggle, along with Trade Federation Senator Lott Dod, conspired with Scipio Senator BaronRush Clovis to rebuild the primary droid foundry on Geonosis. When Clovis arrived on Cato Neimoidia at Dod's palace, Poggle and Dod demanded a greater share of the profits the foundry would produce. When Clovis refused to change the terms, Poggle agreed with Dod's plan to poison his companion, Senator Padmé Amidala. However, Clovis helped Amidala's guard get the cure for her. Poggle and Dod then confronted Clovis about the missing holodisc.[8]

Poggle later returned to Geonosis and serve as the Overseer of the Geonosis primary droid foundry.[9] When the Galactic Republic invaded the planet, Poggle led both the droid army and the native Geonosians against the Republic from the foundry.[10] As the Republic forces approached his foundry, Poggle and his tactical droid, TX-21 oversaw the construction of Super tanks. They then deployed the ten garrisons of droids against the clone troopers under Jedi GeneralsAnakin Skywalker and Luminara Unduli. He and TX-21 then sent in the super tanks which were able to push the clones back. Poggle was then informed that 2 Jedi had infiltrated the reactor room. Poggle and TX-21 then went with a pair of his soldiers and one of his super tanks. There, he ordered his soldiers to take the bombs and kill the Jedi.[11]

Poggle escaped to the Temple in a damaged AAT

After the foundry's destruction,[11] Poggle took an AAT with several of his droids and soldiers with him to the Progate Temple. Along the way, Poggle dropped crates, leaving a trail for Unduli and Buzz to follow. When Unduli and the trooper entered the temple, Poggle and several un-dead Geonosians killed Buzz and captured Unduli. He then took her into the catacombs of the temple and brought her before his queen, Karina the Great, as a gift. Together, they hoped they could use the Brain worms to control Unduli. However, Poggle and Karina were then found by Obi-Wan Kenobi and Skywalker. As they blinded the queen, Poggle was captured by Skywalker and Unduli.[4] He was taken aboard the Venator-class Star DestroyerResolute.[12]

On board the Resolute, Poggle was interrogated by Kenobi, Ki-Adi-Mundi, and Unduli, but refused to answer their questions. When the worms were aboard his Padawan's supply ship, Skywalker interrogated Poggle alone. At first, Poggle refused but was then punched and force-choked. He then revealed the worms' weakness to the cold.[12] Poggle was then transported to Coruscant, where he would be imprisoned in a cell at the Republic Center for Military Operations.[13]

During his time in prison, Poggle was subjected to routine interrogation by agents of Republic Intelligence. One of the main topics, even though information on it was removed by Poggle from the Stalgasin war room, of the interrogations was the supposed deep-space mobile battle station project, the "Ultimate Weapon" designed by the Stalgasin hive, that was thought to be under construction by the Confederacy. However, the Archduke repeatedly denied any Geonosian association, and feigned ignorance to the existence of the plans, which were actually in the possession of the Republic Special Weapons Group.[5]

Poggle was later approached by Lieutenant CommanderOrson Krennic of the Special Weapons Group, in another attempt to garner information on the Confederacy's Ultimate Weapon. Krennic, who himself was attempting to spearhead the project to develop the station, was able to appeal to Poggle's loyalty to his people and convinced him to provide the Geonosian drone population as a workforce for the battle-station's construction. With this allegiance to the Republic, the Archduke was returned to his homeworld on the eve of Meckgin, in which, amidst bloody celebrations, was able to convince the Geonosians to assist in the Republic's construction efforts.[5]

However, Poggle had ulterior motives for providing such assistance to the Republic. Allotted with a private retinue of drones, Poggle secretly directed a massive uprising of the Geonosian soldiers servicing the battle-station as a diversion for his own escape to the Confederacy. In addition to sabotaging the construction project, the Archduke, with his own modified personal shuttle, was able to slip through the Republic flotilla in orbit and flee into hyperspace.[5]

After escaping from Geonosis, Poggle rejoined the Confederacy as the war began to draw to its close. Following a string of Republic victories, GeneralGrievous ordered the members of the Separatist Council, including Poggle, to remain under his protection. Grievous hid them on Utapau while he prepared a strike on Coruscant; following Count Dooku's death and Grievous's failure at Coruscant, Poggle and the other Separatist leaders were sent to a fortified bunker on Mustafar, by order of Darth Sidious.[2]

When Anakin Skywalker, now as Sidious's new apprentice Darth Vader, arrived on Mustafar, the Separatist leaders discovered that he was sent not to reward the council, but to execute them. Poggle attempted to defend himself using his staff, to no avail, and was quickly cut in half.[2]

In the DVD commentary, it is stated that Poggle was made to look different than other Geonosians so it was obvious he was their leader, similar to how BossNass was designed to look different from the other Gungans.[14]

In a deleted scene for Attack of the Clones, Poggle sentences Anakin and Padmé to their deaths, finding them guilty of espionage, leading Nute Gunray to hurry him up to give the sentence.

In the final cut of Revenge of the Sith, Poggle gets cut in half by Darth Vader.[2] However, in the illustrated screenplay of the film, Poggle was beheaded.[15]